FRITZ! 7140, ADSL FRITZ! 7140. Channels quantity: 13 channels. DSL specification: ADSL, ADSL2+, G.992.1. Security algorithms: WPA, WPA2. VoIP protocols: SIP, Supported network protocols: Ethernet, Fast Ethernet, IEEE 802.11b, IEEE 802.11g, IEEE 802.11g++. Bundled software: FRITZ!DSL